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| author | jan.nijtmans <nijtmans@users.sourceforge.net> | 2017-05-04 08:55:28 (GMT) |
|---|---|---|
| committer | jan.nijtmans <nijtmans@users.sourceforge.net> | 2017-05-04 08:55:28 (GMT) |
| commit | 52e520be1091415441ae0c894032b8e0cdfc094a (patch) | |
| tree | cacc75c7196452039185ab45c43e9a8bce3fe8ad /unix/tclUnixSock.c | |
| parent | fbbc93906e624113a7eeaa6d2dd6ddc01072804d (diff) | |
| parent | af718696fbbc08e063e15d22f31935a0a94bc492 (diff) | |
| download | tcl-52e520be1091415441ae0c894032b8e0cdfc094a.zip tcl-52e520be1091415441ae0c894032b8e0cdfc094a.tar.gz tcl-52e520be1091415441ae0c894032b8e0cdfc094a.tar.bz2 | |
merge trunk
Diffstat (limited to 'unix/tclUnixSock.c')
| -rw-r--r-- | unix/tclUnixSock.c | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/unix/tclUnixSock.c b/unix/tclUnixSock.c index b404080..2353f94 100644 --- a/unix/tclUnixSock.c +++ b/unix/tclUnixSock.c @@ -728,6 +728,33 @@ TcpClose2Proc( * *---------------------------------------------------------------------- */ + +#ifndef NEED_FAKE_RFC2553 +static inline int +IPv6AddressNeedsNumericRendering( + struct in6_addr addr) +{ + if (IN6_ARE_ADDR_EQUAL(&addr, &in6addr_any)) { + return 1; + } + + /* + * The IN6_IS_ADDR_V4MAPPED macro has a problem with aliasing warnings on + * at least some versions of OSX. + */ + +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wstrict-aliasing" + if (!IN6_IS_ADDR_V4MAPPED(&addr)) { +#pragma GCC diagnostic pop + return 0; + } + + return (addr.s6_addr[12] == 0 && addr.s6_addr[13] == 0 + && addr.s6_addr[14] == 0 && addr.s6_addr[15] == 0); +} +#endif /* NEED_FAKE_RFC2553 */ + static void TcpHostPortList( Tcl_Interp *interp, @@ -754,12 +781,7 @@ TcpHostPortList( } #ifndef NEED_FAKE_RFC2553 } else if (addr.sa.sa_family == AF_INET6) { - if ((IN6_ARE_ADDR_EQUAL(&addr.sa6.sin6_addr, &in6addr_any)) - || (IN6_IS_ADDR_V4MAPPED(&addr.sa6.sin6_addr) && - addr.sa6.sin6_addr.s6_addr[12] == 0 && - addr.sa6.sin6_addr.s6_addr[13] == 0 && - addr.sa6.sin6_addr.s6_addr[14] == 0 && - addr.sa6.sin6_addr.s6_addr[15] == 0)) { + if (IPv6AddressNeedsNumericRendering(addr.sa6.sin6_addr)) { flags |= NI_NUMERICHOST; } #endif /* NEED_FAKE_RFC2553 */ |